Electric water-heater.



A. LONGOHIA.

ELECTRIC WATER HEATER.

APPLTCMTON man FEB.2|,1916

,$88,069. Patexmfd Dec. l?, 1918.

2 SHEETS-SHEET l.

.figg .51

A. LONGORA.

ELECTRIC WATER HEATER.

APPucATloN HLED FEB. 21. |915.

Pateud Dec. 17, 1918.

2 SHEETS-SHEET 2.

A n /2 'Z930 rUNITED STATS PATEN T OFFICE.

ANTONIO LONGORIA, OF CLEVELAND, OHIO, .ASSIGNOR TO TI-IE STERLING CORPORATION COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

` ELECTRIC VVATER-I-IEATER.

Specification of Letters Patent.

Patented Dec. 17, 1918.

Application filed February 21, 1916. Serial No. 79,623.

To all whom it may concern:

Be it known that I, ANTONIO LoNGonrA, subject of the King of Spain, residing at Cleveland, in the county of Cuyahoga and State of Chio, have invented certain new and useful Improvements in Electric Vater- Heaters, of which the following is a specification.

This invention relates to improvements in heaters and particularly to electric water heaters.

More specifically the invention relates to an electric water heater comprising a casing connected on the inlet side to the water supply and of a type such that a plurality of heating elements may be supplied between the end plates so as to increase or decrease the capacity of the heater. The invention also relates to the location of a suitable controlling valve and switch mechanism on the inlet and to other details such as the con-Y struction of the units themselves and the electric connections.

The invention may be further briefly summarized as consisting in the construction and combination of parts hereinafter set forth in the following description, drawings and claims.

Referring to the drawings Figure l is a side elevation of the device; Fig. 2 is a vertical section taken through the center from front to rear, but showing portions of the elements with one of the heating units broken away t0 a point where it will show the electrical connections leading from the element to the outside; Fig. 3 is a View in section through the blade of the switch showing the electrical connections; Fig. 4 is a front elevation with parts broken away; Fig. 5 is a sectional view through one heating element; Fig. 6 is a detailed view showing the connection between the valve plug and the switch member.

In the embodiment shown in the drawings l represents the front plate which is provided with a suitable spout 2 andan inwardly extending flange 3 about its periphery, the flange being spaced from the lower end of the plate and forming an extension t beyond the flange for a purpose to be described. The casing also comprises a back plate 5 having an inwardly extending ange 6 and an extension 7 corresponding to the extension 4. This plate is provided with an opening S communicating with a'boss 9 receiving a pipe connection 10 leading to a valve member l1 provided with a valve plug 12 having an operating wheel 13 extending to one side of the heater casing as shown in Fig. A. This valve member is connected to a suitable pipe 14 leading to any source of water supply. The valve structure is similar to any other valve cock and has an opening 15 for permitting the water to pass to the heater. The fiange 6 of the back casing plate 5 is provided with an upwardly extending flange 16 in front of the opening 8 and preventing the impinging of the water against the heating element as will appear.

The front and back casing plates 1 and 5 are connected by suitable screws or through bolts 17 properly spaced around the casing and it is between these plates and upon these screws that the several heating units are arranged.

In the drawings there are three heating units shown, the two outer ones being similar in structure and the inner one being similar in all respects to the other two except for the electrical connection and a description of one and a detailed description of the electrical connection of the center one will suiiice for all. Each of the heating units comprises a pair of copper plates 18 corresponding in size to the flanges 3 and 6 spaced by ber or other similar frames 19 which are arranged side by side and these frames form an inner heating element chamber 20. These frames at the sides correspond in width to the flanges 3 and 6, but at the upper and lower ends are wider and they together with the copper plates are provided with openings for receiving eyelets 21 which are provided with flanges 22 at each end serving to clamp the parts together, the eyelets forming a means of communication from one side of the unit to the other. The eyelets are preferably provided in one end of each plate, as shown, or in both ends depending upon whether a series or a parallel circulation of water is to be utilized through the heater. If the water is to circulate in parallel through the heater then the eyelets are provided at the top and bottom. The ber frames 19 at the lower end of the casing are provided with recesses 23 which form openings for the conductor strips leading from the elements as will appear.

Each of the heating elements comprises a plate 24 of a heat conducting insulating ceive the incoming wires, nuts 33 being ,by suitable screws 30.

by means @iframes 2 8 whichcorrespond in.

size and shape to the'flanges 3 and 6. The

front and back plates together with the several heating lelementsare all held tightly'to` gether by the screws 17.

j n the arrangement shown an eyelet 21 is.

provided in the upper end of each of the twooutside units and inthe lower end of the central unit so that the water entering Vthrough the opening 8 engages the flange 16 and passesV up through thechamber formed between the right hand elementand the plate 5 tothe eyelet 21 at thetop. From this it passes to the next water chamber formed' by the frame- 28 down to the eyelet 21 at the lower end of' thecentral unit, then-upward onitthe other side of this unit tothe eyelet of v theleft hand unit and from thence down to the Vdischarge opening leading through the front plate. In this way acircuitous or series course is provided for the water so that it engages all of the units in the heater.

Secured to the extension 4 of the front casing plate is a ber block 29 held in place This v liber block receives two binding screws 31 having threaded Shanks 32 extending through the block and within the heater casing for the reception of the flatwire connections 26 and 27 Thesebinding s crews also serve to reprovided for holding the connections. The Space between the extensions 4 and 7 is closed by a cover 34 which is U-shaped in cross section as shown in full and dotted lines in Fig. 4.

The hand wheel 13 is provide'dwith suitable indications or legends such as Hot, gOif, Cold, Off and these legends are utilized'in connection withthe index point 35 secured tothe casing. JAny suitable type of snap switch may be employed so long as there is some connection with the valve plug and Ihave shown in Fig. 3 the arrange ment of the switch members of an ordinary snap switch type showinghow the current ofthe heatingelements is controlled and in this view 36 represents thebase or body portion of the switch which is mounted upon a bracket 37 secured to the'casing in any convenientmanne'r. Mounted on this base, which is lporcelain orsome insulating material, are suitablestationary contact blades 38 ofa well known type each having a suitable binding screw 39 for connection in the circuit.v At an angle of 90o to this member 38 is a similar member 40 having a binding screw 41. Mounted at the center is an actuating shaft 42 whichis square and receives an insulating bushing 43 arranged inside of the switch member 44. This switch member 44 has blades 45 which are adapted lto coperate with the contact members 33 and 40 in a well known manner.

Y In the position in which the parts are shown in Fig. 3 the current is supplied to the heating elements and assuming that water is being supplied tothe heater then it will be heated by the elements. lf the operator wishes'to close the valve, he turns the wheel 13 ina clock-wise direction as shown in Fig. 1 until the word OE appears opposite the index point 35. This causes the switch member 44ste assume a position at 90 to that shown in'Fig. 3 when the circuit will be broken. The next 20 turn of the wheel will bring the word Cold to the index pointwhen cold water will pass through the device, the switch member being` outV of engagement entirely with the contacts.

T he connection between the switch actuating` shaft 42 and the valve plug consistsof a hollxw square socket 46 formed inthe shaft and adapted to receive the Isquared shaft 47 formed onvthe end of the valve pltig 12. Y

Y aving described my invention, l claim 1. An electric water heater, comprising a casing having water passages therein, a valve controlling the iiow of water through said passages, saidvalve having two different open positions, an electric heating element arranged to heat the water flowing through said passages, an electricc'ircuit therefor, and a switch lcontrolling'gsaid circuit, said switch having'open and closed positions and being'so'connected to said roo valve that in one of said valve positions the switch is open and in the' other of said valvepositions the switch is closed.

2. Anl electric water heater, comprising'a casing having water passages therein, a valve controlling the flow of water through Saidpassages, said valvehaving two open positions and a closed position, an electric heating element adapted to -heat the water flowing-'through said passages, an electricv circuit for said element, anda switch controlling said circuit, said circuit having 'a closed and two open positions and beingso connected to said valve that in oneof said open valve positions the switch is closed and in said other open valve positionthe switch is open.

3. vAn electric :water heater,"omprising a casing having water passages therein, a rotatingV valve controlling-'the iiow of water through said passages, said valve having` two oppositeopen and two opposite closed positions located ninety degrees apart, an

electric heating element adapted to heat the Water iiowing through said passages, an electric circuit for said element, and a rotatable switch controlling said circuit, said switch having four positions at ninety degrees apart and closing said circuit in one only of said positions, said switch being connected to rotate with said valve and being so arranged as to close said circuit in one only of the open positions or said valve.

4. In an electric water heater a Jiront plate, a spacing trame member upon the back thereof, a Water connection for the front plate, a rear plate, an inwardly eX- tending spacing frame extending therefrom, a Water connection :tor the rear plate, a heating element arranged between the aid spacing frame members and having a passage therethrough for conducting Huid therethrough, and means in front of the inlet in the rear plate for preventing the incom- Copes of this patent may be obtained for five cents each, by addressing the ing' stream of fluid from impinging against the element.

5. In an electric Water heater a front plate, a spacing trame member upon the back thereof, a Water connection for the front plate, a rear plate, an inwardly eX- tending spacing frame extending therefrom, a Water connection for the rear plate, a heating element arranged between the said spacing Jframe members and having a passage therethrough for conducting iuid therethrough, and a battle in front of the inlet for preventing the incoming stream of fluid from impinging against the element.

In testimony whereof I affix my signature in presence of tivo Witnesses as follows.

ANTONIO LONGORIA.

Witnesses G. O. FARQUHARSON, D. TozER.

Commissioner of Patents,

Washington, D. U.

Correction i'n Letters FatentNo.1,288,069.

It is hereby certified that Letters Patent No. 1,288,069, granted December 17,

1918, upon the application of Antonio Longoria, of Cleveland, Ohio, for anime provement in Electric Water-Heaters, were erroneously issued to The Sterling Corporaton Company, assignee, Whereas said Letters Patent should have been issued to The Sterling Electrical Corporation Company, assignee, by mesne assignments, as shown by the records of assignments in this oiiice; and that the said Letters Patent should be read with this correction therein that the saino may conform to the record of the case in the Patent Oiice.

Signed and sealed this 1st day of April, A. D., 1919.

R. F. VHITEHEAD, Acting Commissioner of Patenzs.

[SEAL] ion in Letters PatentNo. 1,288,069.

Correct It is hereby certified that Letters Patent No. 1,288,069, granted December 17,

1918, upon the application of Antonio Longoria, of Cleveland, Ohio, for animprovement in Electric Water-Heaters, Were erroneously issued to The Sterling Corporation Company, assignee, Whereas said Letters Patent should have been issued to The Sterling Electrical Corporation Company, assignee, by mesne assignments, as shown by the records of assignments in this ofice; and that the said Letters Patent should he read with this correction therein that the same may conform to the record of the ease in the Patent Oice.

Signed and sealed this 1st day of April, A. D., 1919.

R. F. WHITEHEAD, Acting Commissioner of Patents.

[SEAL] 

